Pregnant women infected with the H5N1 bird-flu virus can pass
the deadly disease to their unborn babies, a study by Chinese
experts has found.
But the discovery does not mean a global pandemic is at hand, Gu
Jiang, director of the School of Basic Medical Sciences affiliated
to Peking University, which led the study, said.
"So far, no substantiated case of inter-human transmission has
been observed," Gu said. "It largely depends on how the virus
further mutates."
Gregory Hartl, a spokesman for the World Health Organization,
said the passing of the virus from mother to fetus was not really a
case of human-to-human transmission as the two effectively function
as a single body.
By studying tissues taken from the body of a 24-year-old
pregnant woman killed by bird flu, Gu discovered the virus had
passed through her placenta to infect the fetus.
Gu said his research project, which also involved studying
tissue from a 35-year-old man killed by the virus, was the eighth
of its kind worldwide.
He said that as well as being found in the woman's placenta, the
virus was detected in the alimentary canal, brain, blood cells and
respiratory tract of both victims. It was also found in the lungs
and liver of the fetus.
The findings have great significance for treatment and
prevention, Gu said.
"For example, blood and feces from people infected with the
virus must be handled extremely carefully to avoid further
spreading of the disease."
(China Daily October 27, 2007)